Method of producing metakaolin

Details Method of producing metakaolin Method of producing metakaolin

C - Chemistry, Metallurgy

04

B

C04B 28/26 (2006.01) C04B 22/00 (2006.01)

Patent

CA 2565517

A process for producing high grade metakaolin directly from kaolinzed sands ore body. In one embodiment, a source of kaolin ore is reduced in the size to a size distribution of between -2 inches and 10 mesh. The ore is then dried in a dryer at a temperature of not greater than 180°C to a moisture content of not greater than 0.5% by weight to liberate kaolin and calcined at a temperature of not greater than 875°C to produce metakaolin.

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